A note on two-stage network DEA model: Frontier projection and duality

Sungmook Lim and Joe Zhu

European Journal of Operational Research, 2016, vol. 248, issue 1, 342-346

Abstract: In Chen, Cook, Kao, and Zhu (2013), it is demonstrated, as a network DEA pitfall, that while the multiplier and envelopment DEA models are dual models and equivalent under the standard DEA, such is not necessarily true for the two types of network DEA models in deriving divisional efficiency scores and frontier projections. As a reaction to this work, we demonstrate that the duality in the standard DEA naturally migrates to the two-stage network DEA. Formulas are developed to obtain frontier projections and divisional efficiency scores using a DEA model's and its dual solutions. The case of Taiwanese non-life insurance companies is revisited using the newly developed approach.

Keywords: Data envelopment analysis (DEA); Efficiency; Duality; Two-stage; Frontier projection (search for similar items in EconPapers)
Date: 2016
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (31)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:ejores:v:248:y:2016:i:1:p:342-346

DOI: 10.1016/j.ejor.2015.06.050

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